Stapler



1.1 is a front perspective view of a stapler showing my new design;

1.2 is a rear perspective view thereof;

1.3 is a right side elevation view thereof;

1.4 is a left side elevation view thereof;

1.5 is a top plan view thereof; and

1.6 is an enlarged partial view of 1.5. 

CLAIM The ornamental design for an stapler, as shown and described. 